This week, experts monitoring the size and spread of beaver dams in North America stumbled across a beaver dam so huge that it can be seen from space.

The dam, at the southern edge of Wood Buffalo National Park in Northern Alberta, Canada, is more than twice the length of the iconic Hoover Dam, stretching more than 2,790 feet across the Canadian park.

Check out a photo -- taken from space -- after the jump.

The dam stretches more than half-a-mile through a park in northern Canada.

The Hoover Dam, which at the time of its construction in 1936 was the largest concrete structure in the world, is an impressive 1,244 feet across, so it's a dam shame (badop-ching!) to see Arizona's architectural pride and joy outdone by a bunch of aquatic rodents.

Prior to the discovery of the Canadian dam, the longest beaver dam biologists have found was about 1,500 feet long, so the length of the Canadian dam has beaver-folk in shock.

The dam is made of wood and mud, so it's probably not as sturdy as the Hoover Dam, but an impressive sight, nonetheless.

Biologists say it's likely several different beaver families worked together to build the dam over several months.